Mom duty! Beaming Kourtney Kardashian carries sweet son Reign to the ice skating rink for family day out… with spandex wearing sister Khloe Kardashian hot on her heels

She is mom to three kids with ex Scott Disick.

And on Thursday, Kourtney Kardashian stepped out with her youngest child, son Reign, for some fun with her sisters at the Iceland Ice Skating Center in Los Angeles.

The 38-year-old star was joined by her striking younger sister Khloe Kardashian, who showed off her figure in skintight workout clothes.